There are two principal ways of practicing Judo: Kata and Randori. Kata, which literally means “form” is practiced following a formal system of prearranged exercise, while Randori, meaning “free practice” is practiced freely. Through Kata practice, trainees learn the principles of the techniques. There are eight types of Kata.
For 1st Kyu and above Kata is mandatory. For 1st Kyu you have to choose one set from either Katame No Kata (forms of grappling or holding) or Nage No Kata (forms of throwing).
We would suggest being examined on the first set from Katame No Kata.
Here are links to the Kata syllabi